Firewall is a breathable 3 layer 4-way stretch barrier that protects from the wind, rain and cold.
Designed for serious, cold, nasty conditions, with full frontal wind and water protection. They feel great and the fit is good. We like the fabric it is not restrictive and is soft for a tight of this type. A medium equates to a size 12.
Subzero DWR resists rain absorption
Flat lock stitching
10" ankle zips
Reflective piping along zips
Inside key pocket at waist
Crotch gussett to reduce inseam bulk
Glo reflective on upper leg, visible from front back and sides